Commit Graph

16 Commits

Author SHA1 Message Date
Peter Eisentraut
187ca5e8e9 Revert "pg_ctl: Add idempotent option"
This reverts commit 8730618458.  The
behavior in certain cases is still being debated, and it's too late to
solve this before beta.
2013-04-29 21:55:12 -04:00
Tom Lane
3353583d7e Don't try to pass -I switch to postmaster in contrib/start-scripts/linux.
Undo thinko in commit 8730618458.
Per bug #8098 from Catherine Devlin.
2013-04-19 13:28:45 -04:00
Peter Eisentraut
8730618458 pg_ctl: Add idempotent option
This changes the behavior of the start and stop actions to exit
successfully if the server was already started or stopped.

This changes the default behavior of the start action:  Before, if the
server was already running, it would print a message and succeed.  Now,
that situation will result in an error.  When running in idempotent
mode, no message is printed and pg_ctl exits successfully.

It was considered to just make the idempotent behavior the default and
only option, but pg_upgrade needs the old behavior.
2013-04-13 23:42:42 -04:00
Tom Lane
93f4d7f806 Support Linux's oom_score_adj API as well as the older oom_adj API.
The simplest way to handle this is just to copy-and-paste the relevant
code block in fork_process.c, so that's what I did. (It's possible that
something more complicated would be useful to packagers who want to work
with either the old or the new API; but at this point the number of such
people is rapidly approaching zero, so let's just get the minimal thing
done.)  Update relevant documentation as well.
2012-06-13 15:35:52 -04:00
Magnus Hagander
9f2e211386 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
Bruce Momjian
1f0cf56be2 Update startup scripts for Linux and FreeBSD.
Kevin Grittner
2010-02-23 22:15:35 +00:00
Tom Lane
d5e0029862 Add some simple support and documentation for using process-specific oom_adj
settings to prevent the postmaster from being OOM-killed on Linux systems.

Alex Hunsaker and Tom Lane
2010-01-11 18:39:32 +00:00
Tom Lane
8f5500e6bd Make it reasonably safe to use pg_ctl to start the postmaster from a boot-time
script.

To do this, have pg_ctl pass down its parent shell's PID in an environment
variable PG_GRANDPARENT_PID, and teach CreateLockFile() to disregard that PID
as a false match if it finds it in postmaster.pid.  This allows us to cope
with one level of postgres-owned shell process even with pg_ctl in the way,
so it's just as safe as starting the postmaster directly.  You still have to
be careful about how you write the initscript though.

Adjust the comments in contrib/start-scripts/ to not deprecate use of
pg_ctl.  Also, fix the ROTATELOGS option in the OSX script, which was
indulging in exactly the sort of unsafe coding that renders this fix
pointless :-(.  A pipe inside the "sudo" will probably result in more
than one postgres-owned process hanging around.
2009-08-27 16:59:38 +00:00
Peter Eisentraut
6809c064d7 Be consistent about not using ECHO_N/ECHO_C (seems unnecessary on Linux). 2006-07-13 14:44:33 +00:00
Tom Lane
c8196c87a7 Adjust postmaster to recognize that a lockfile containing its parent's PID
must be stale.  Tweak example startup scripts to not use pg_ctl but launch
the postmaster directly, thereby ensuring that only the postmaster's direct
parent shell will be a postgres-owned process.  In combination these should
fix the longstanding problem of the postmaster sometimes refusing to start
during reboot because it thinks the old lockfile is not stale.
2004-10-01 18:30:25 +00:00
PostgreSQL Daemon
969685ad44 $Header: -> $PostgreSQL Changes ... 2003-11-29 19:52:15 +00:00
Bruce Momjian
9df03060e9 Fix for Linux startup script.
Slawomir Sudnik
2003-07-26 20:42:55 +00:00
Bruce Momjian
310c084921 Add Linux restart --- Slawomir Sudnik
Add "-l $PGLOG" for restart --- Darko Prenosil
2003-06-12 02:02:24 +00:00
Bruce Momjian
d4cafeba31 Patch to add comments to Linux startup script.
Rene Pijlman
2001-07-30 14:52:42 +00:00
Peter Eisentraut
031e1afa23 Pass -D option to pg_ctl because export PGDATA won't be preserved across
'su -l'.

Reported by <VASQUEZ_JASON@LILLY.COM>.
2001-04-19 19:17:44 +00:00
Peter Eisentraut
bbac19a973 Remove outdated contrib/linux start scripts. Beat some sense into
contrib/init.d start script.  Place into more aptly named directory.  Maybe
we could add scripts for other platforms here later.
2001-02-08 19:53:33 +00:00